Renee S. Wenzlaff, APNP
NPI 1124271549ActiveIndividual· Nurse Practitioner, Psych/Mental Health· Waukesha, WI
Nurse Practitioner, Psych/Mental Health (APNP) with Cary J Kohlenberg MD SC, practicing in Waukesha, Wisconsin. Their prescriptions cost Medicare Part D more than their services did: $104,534 for 2,895 claims, against $33,078 paid for services in 2024. Glaxosmithkline, LLC. was the largest of 2 companies reporting payments in 2025, $114.11 in all, mostly food and beverage.
Overview
| NPI | 1124271549 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | APNP |
| Sole proprietor | No |
| NPI issued | Oct 29, 2008 |
| Last updated in NPPES | Jan 28, 2026 |
| Certified by provider | Jan 28, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Nurse Practitioner, Psych/Mental Health Primary | 363LP0808X | 1601-33 | WI |
| Nurse Practitioner, Pediatrics | 363LP0200X | 98690 | WI |
| Nurse Practitioner | 363L00000X | 1601 | WI |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Nov 10, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 11, 2026 | No match | — |
| New York OMIG · Nov 11, 2026 | No match | — |
| Ohio Medicaid · Nov 11, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 11, 2026 | No match | — |
| Washington HCA · Nov 11, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Nurse Practitioner (WI) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 141 |
|---|---|
| Services billed | 537 across 9 procedure codes |
| Paid by Medicare | $33,078 |
Part D prescriptions in 2024
| Prescriptions (claims) | 2,895 · 2,919 30-day fills |
|---|---|
| Patients | 232 |
| Total drug cost | $104,534 |
| Generic share | 98% of claims |
Education and affiliations
| Graduation year | 2009 |
|---|---|
| Medicare specialty | Nurse Practitioner |
| Telehealth | Offers telehealth |
Medical group
- Cary J Kohlenberg MD SCMilwaukee, WI · 9 clinicians
Industry payments (Open Payments)
- 2025$114.11 · 2 payments from 2 companies
- 2024$124.87 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Glaxosmithkline, LLC. | $92.10 | 1 |
| Otsuka America Pharmaceutical, Inc. | $22.01 | 1 |
What the 2025 payments were for
- Food and Beverage$114.11 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 28 psychiatric nurse practitioners in Waukesha · All psychiatric nurse practitioners in Wisconsin